// Copyright 2012 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package syscall
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import (
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"unsafe"
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)
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const (
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STANDARD_RIGHTS_REQUIRED = 0xf0000
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STANDARD_RIGHTS_READ = 0x20000
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STANDARD_RIGHTS_WRITE = 0x20000
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STANDARD_RIGHTS_EXECUTE = 0x20000
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STANDARD_RIGHTS_ALL = 0x1F0000
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)
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const (
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NameUnknown = 0
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NameFullyQualifiedDN = 1
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NameSamCompatible = 2
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NameDisplay = 3
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NameUniqueId = 6
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NameCanonical = 7
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NameUserPrincipal = 8
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NameCanonicalEx = 9
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NameServicePrincipal = 10
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NameDnsDomain = 12
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)
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// This function returns 1 byte BOOLEAN rather than the 4 byte BOOL.
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// https://blogs.msdn.com/b/drnick/archive/2007/12/19/windows-and-upn-format-credentials.aspx
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//sys TranslateName(accName *uint16, accNameFormat uint32, desiredNameFormat uint32, translatedName *uint16, nSize *uint32) (err error) [failretval&0xff==0] = secur32.TranslateNameW
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//sys GetUserNameEx(nameFormat uint32, nameBuffre *uint16, nSize *uint32) (err error) [failretval&0xff==0] = secur32.GetUserNameExW
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// TranslateAccountName converts a directory service
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// object name from one format to another.
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func TranslateAccountName(username string, from, to uint32, initSize int) (string, error) {
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u, e := UTF16PtrFromString(username)
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if e != nil {
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return "", e
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}
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n := uint32(50)
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for {
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b := make([]uint16, n)
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e = TranslateName(u, from, to, &b[0], &n)
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if e == nil {
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return UTF16ToString(b[:n]), nil
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}
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if e != ERROR_INSUFFICIENT_BUFFER {
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return "", e
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}
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if n <= uint32(len(b)) {
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return "", e
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}
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}
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}
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const (
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// do not reorder
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NetSetupUnknownStatus = iota
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NetSetupUnjoined
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NetSetupWorkgroupName
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NetSetupDomainName
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)
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type UserInfo10 struct {
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Name *uint16
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Comment *uint16
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UsrComment *uint16
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FullName *uint16
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}
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//sys NetUserGetInfo(serverName *uint16, userName *uint16, level uint32, buf **byte) (neterr error) = netapi32.NetUserGetInfo
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//sys NetGetJoinInformation(server *uint16, name **uint16, bufType *uint32) (neterr error) = netapi32.NetGetJoinInformation
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//sys NetApiBufferFree(buf *byte) (neterr error) = netapi32.NetApiBufferFree
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const (
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// do not reorder
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SidTypeUser = 1 + iota
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SidTypeGroup
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SidTypeDomain
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SidTypeAlias
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SidTypeWellKnownGroup
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SidTypeDeletedAccount
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SidTypeInvalid
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SidTypeUnknown
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SidTypeComputer
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SidTypeLabel
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)
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//sys LookupAccountSid(systemName *uint16, sid *SID, name *uint16, nameLen *uint32, refdDomainName *uint16, refdDomainNameLen *uint32, use *uint32) (err error) = advapi32.LookupAccountSidW
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//sys LookupAccountName(systemName *uint16, accountName *uint16, sid *SID, sidLen *uint32, refdDomainName *uint16, refdDomainNameLen *uint32, use *uint32) (err error) = advapi32.LookupAccountNameW
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//sys ConvertSidToStringSid(sid *SID, stringSid **uint16) (err error) = advapi32.ConvertSidToStringSidW
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//sys ConvertStringSidToSid(stringSid *uint16, sid **SID) (err error) = advapi32.ConvertStringSidToSidW
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//sys GetLengthSid(sid *SID) (len uint32) = advapi32.GetLengthSid
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//sys CopySid(destSidLen uint32, destSid *SID, srcSid *SID) (err error) = advapi32.CopySid
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// The security identifier (SID) structure is a variable-length
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// structure used to uniquely identify users or groups.
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type SID struct{}
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// StringToSid converts a string-format security identifier
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// sid into a valid, functional sid.
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func StringToSid(s string) (*SID, error) {
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var sid *SID
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p, e := UTF16PtrFromString(s)
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if e != nil {
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return nil, e
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}
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e = ConvertStringSidToSid(p, &sid)
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if e != nil {
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return nil, e
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}
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defer LocalFree((Handle)(unsafe.Pointer(sid)))
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return sid.Copy()
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}
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// LookupSID retrieves a security identifier sid for the account
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// and the name of the domain on which the account was found.
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// System specify target computer to search.
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func LookupSID(system, account string) (sid *SID, domain string, accType uint32, err error) {
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if len(account) == 0 {
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return nil, "", 0, EINVAL
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}
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acc, e := UTF16PtrFromString(account)
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if e != nil {
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return nil, "", 0, e
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}
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var sys *uint16
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if len(system) > 0 {
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sys, e = UTF16PtrFromString(system)
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if e != nil {
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return nil, "", 0, e
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}
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}
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n := uint32(50)
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dn := uint32(50)
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for {
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b := make([]byte, n)
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db := make([]uint16, dn)
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sid = (*SID)(unsafe.Pointer(&b[0]))
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e = LookupAccountName(sys, acc, sid, &n, &db[0], &dn, &accType)
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if e == nil {
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return sid, UTF16ToString(db), accType, nil
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}
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if e != ERROR_INSUFFICIENT_BUFFER {
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return nil, "", 0, e
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}
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if n <= uint32(len(b)) {
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return nil, "", 0, e
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}
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}
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}
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// String converts sid to a string format
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// suitable for display, storage, or transmission.
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func (sid *SID) String() (string, error) {
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var s *uint16
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e := ConvertSidToStringSid(sid, &s)
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if e != nil {
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return "", e
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}
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defer LocalFree((Handle)(unsafe.Pointer(s)))
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return UTF16ToString((*[256]uint16)(unsafe.Pointer(s))[:]), nil
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}
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// Len returns the length, in bytes, of a valid security identifier sid.
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func (sid *SID) Len() int {
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return int(GetLengthSid(sid))
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}
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// Copy creates a duplicate of security identifier sid.
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func (sid *SID) Copy() (*SID, error) {
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b := make([]byte, sid.Len())
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sid2 := (*SID)(unsafe.Pointer(&b[0]))
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e := CopySid(uint32(len(b)), sid2, sid)
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if e != nil {
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return nil, e
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}
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return sid2, nil
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}
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// LookupAccount retrieves the name of the account for this sid
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// and the name of the first domain on which this sid is found.
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// System specify target computer to search for.
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func (sid *SID) LookupAccount(system string) (account, domain string, accType uint32, err error) {
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var sys *uint16
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if len(system) > 0 {
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sys, err = UTF16PtrFromString(system)
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if err != nil {
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return "", "", 0, err
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}
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}
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n := uint32(50)
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dn := uint32(50)
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for {
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b := make([]uint16, n)
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db := make([]uint16, dn)
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e := LookupAccountSid(sys, sid, &b[0], &n, &db[0], &dn, &accType)
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if e == nil {
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return UTF16ToString(b), UTF16ToString(db), accType, nil
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}
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if e != ERROR_INSUFFICIENT_BUFFER {
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return "", "", 0, e
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}
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if n <= uint32(len(b)) {
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return "", "", 0, e
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}
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}
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}
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const (
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// do not reorder
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TOKEN_ASSIGN_PRIMARY = 1 << iota
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TOKEN_DUPLICATE
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TOKEN_IMPERSONATE
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TOKEN_QUERY
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TOKEN_QUERY_SOURCE
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TOKEN_ADJUST_PRIVILEGES
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TOKEN_ADJUST_GROUPS
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TOKEN_ADJUST_DEFAULT
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TOKEN_ADJUST_SESSIONID
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TOKEN_ALL_ACCESS = STANDARD_RIGHTS_REQUIRED |
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TOKEN_ASSIGN_PRIMARY |
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TOKEN_DUPLICATE |
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TOKEN_IMPERSONATE |
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TOKEN_QUERY |
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TOKEN_QUERY_SOURCE |
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TOKEN_ADJUST_PRIVILEGES |
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TOKEN_ADJUST_GROUPS |
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TOKEN_ADJUST_DEFAULT |
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TOKEN_ADJUST_SESSIONID
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TOKEN_READ = STANDARD_RIGHTS_READ | TOKEN_QUERY
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TOKEN_WRITE = STANDARD_RIGHTS_WRITE |
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TOKEN_ADJUST_PRIVILEGES |
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TOKEN_ADJUST_GROUPS |
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TOKEN_ADJUST_DEFAULT
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TOKEN_EXECUTE = STANDARD_RIGHTS_EXECUTE
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)
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const (
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// do not reorder
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TokenUser = 1 + iota
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TokenGroups
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TokenPrivileges
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TokenOwner
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TokenPrimaryGroup
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TokenDefaultDacl
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TokenSource
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TokenType
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TokenImpersonationLevel
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TokenStatistics
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TokenRestrictedSids
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TokenSessionId
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TokenGroupsAndPrivileges
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TokenSessionReference
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TokenSandBoxInert
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TokenAuditPolicy
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TokenOrigin
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TokenElevationType
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TokenLinkedToken
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TokenElevation
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TokenHasRestrictions
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TokenAccessInformation
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TokenVirtualizationAllowed
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TokenVirtualizationEnabled
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TokenIntegrityLevel
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TokenUIAccess
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TokenMandatoryPolicy
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TokenLogonSid
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MaxTokenInfoClass
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)
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type SIDAndAttributes struct {
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Sid *SID
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Attributes uint32
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}
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type Tokenuser struct {
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User SIDAndAttributes
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}
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type Tokenprimarygroup struct {
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PrimaryGroup *SID
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}
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//sys OpenProcessToken(h Handle, access uint32, token *Token) (err error) = advapi32.OpenProcessToken
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//sys GetTokenInformation(t Token, infoClass uint32, info *byte, infoLen uint32, returnedLen *uint32) (err error) = advapi32.GetTokenInformation
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//sys GetUserProfileDirectory(t Token, dir *uint16, dirLen *uint32) (err error) = userenv.GetUserProfileDirectoryW
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// An access token contains the security information for a logon session.
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// The system creates an access token when a user logs on, and every
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// process executed on behalf of the user has a copy of the token.
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// The token identifies the user, the user's groups, and the user's
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// privileges. The system uses the token to control access to securable
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// objects and to control the ability of the user to perform various
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// system-related operations on the local computer.
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type Token Handle
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// OpenCurrentProcessToken opens the access token
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// associated with current process.
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func OpenCurrentProcessToken() (Token, error) {
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p, e := GetCurrentProcess()
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if e != nil {
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return 0, e
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}
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var t Token
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e = OpenProcessToken(p, TOKEN_QUERY, &t)
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if e != nil {
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return 0, e
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}
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return t, nil
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}
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// Close releases access to access token.
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func (t Token) Close() error {
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return CloseHandle(Handle(t))
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}
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// getInfo retrieves a specified type of information about an access token.
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func (t Token) getInfo(class uint32, initSize int) (unsafe.Pointer, error) {
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n := uint32(initSize)
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for {
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b := make([]byte, n)
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e := GetTokenInformation(t, class, &b[0], uint32(len(b)), &n)
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if e == nil {
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return unsafe.Pointer(&b[0]), nil
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}
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if e != ERROR_INSUFFICIENT_BUFFER {
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return nil, e
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}
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if n <= uint32(len(b)) {
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return nil, e
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}
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}
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}
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// GetTokenUser retrieves access token t user account information.
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func (t Token) GetTokenUser() (*Tokenuser, error) {
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i, e := t.getInfo(TokenUser, 50)
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if e != nil {
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return nil, e
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}
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return (*Tokenuser)(i), nil
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}
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// GetTokenPrimaryGroup retrieves access token t primary group information.
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// A pointer to a SID structure representing a group that will become
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// the primary group of any objects created by a process using this access token.
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func (t Token) GetTokenPrimaryGroup() (*Tokenprimarygroup, error) {
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i, e := t.getInfo(TokenPrimaryGroup, 50)
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if e != nil {
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return nil, e
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}
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return (*Tokenprimarygroup)(i), nil
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}
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// GetUserProfileDirectory retrieves path to the
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// root directory of the access token t user's profile.
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func (t Token) GetUserProfileDirectory() (string, error) {
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n := uint32(100)
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for {
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b := make([]uint16, n)
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e := GetUserProfileDirectory(t, &b[0], &n)
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if e == nil {
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return UTF16ToString(b), nil
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}
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if e != ERROR_INSUFFICIENT_BUFFER {
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return "", e
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}
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if n <= uint32(len(b)) {
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return "", e
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}
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}
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}
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